Which of the following instruments can be used to measure AC current only? - Measurements and Instrumentation

Electronics and Communication Engineering (ECE) : Measurements and Instrumentation - Quiz(MCQ)

Which of the following instruments can be used to measure AC current only?

A)

Moving iron voltmeter

B)

Induction type ammeter

C)

Moving iron ammeter

D)

Permanent Magnet Type ammeter

Correct Answer : Option (B) : Induction type ammeter

Recently Updated in Measurements and Instrumentation Questions

In measurements using strain gauge, the dummy strain gauge is used to

A)

compensate for error in voltmeter

B)

compensate for change in temperature

C)

compensate for resistance of strain gauge

D)

compensate for error due to change in voltage of battery

Correct Answer : compensate for change in temperature

A CT is used to feed current coils of wattmeter, energy meter, power factor meter and an ammeter. Then

A)

all coils are in parallel

B)

the coils are in series-parallel

C)

all the coils are in series

D)

None of the above

Correct Answer : all the coils are in series

A permanent magnet moving coil measures

A)

dc value

B)

peak value

C)

true rms value

D)

rms plus dc value

Correct Answer : dc value

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